Waterproof covers.

[Rrokin]

Does anyone know where I can purchase one of those waterproof covers for rifle bags?. The elasticated slip on type to protect the underside of the bag when placed on the ground.
I see people with them everywhere but cannot find them through Google. I have a Ridgeline sniper which I don't fancy leaving lying around in the winter mud .
Thanks in advance.

[bezzer]

Aim Fieldsports do them in sizes to fit their bags, just find the nearest size of yours to one of their bags to get the right size.